A rechargeable device most often made of lead plates covered in an electrolyte and protected by a plastic shell which supplies consistent electrical energy to a motor vehicle. Often referred to as an SLI battery (starting, lighting, ignition). Powers starter motor, lights, and ignition systems of a ...

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2
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3answers
27k views

The car makes clicking noise when i try to turn on the engine. What could be the problem?

I've a 2007 honda civic. The radio and everything work fine, but when i try to turn on the engine it makes clicking noise. I thought, it could be a battery problem. I also try jump starter to start ...
6
votes
3answers
776 views

Will an auxiliary battery hurt a vehicle's alternator?

I am going to be road tripping and living out of my SUV for a while. I need a way to power a tiny portable cooler/fridge 24/7 and would like to be able to power my cell phone, laptop, and maybe a few ...
2
votes
1answer
7k views

Car always takes several attempts to start, what's the problem?

Recently (since the beginning of the winter), my car has been taking several attempts to start every time I use it. Several factors about the car have changed, so it's hard for me to tell what's ...
34
votes
3answers
33k views

Is there a way to put Prius with dead battery into neutral?

I own a 2010 Prius. It has a dead battery, front facing forward in my garage. I do not have long enough jumper cables. I’ve searched the Internet. Did Toyota really create a car that cannot be put ...
2
votes
1answer
65 views

Swift Dzire Battery Sign remains ON whenever car is started after 9-10 hrs

Swift Dzire Battery Sign remains ON in the dashboard lights whenever car is started after 9-10 hrs and Car doesn't move until the battery sign is gone. Battery Sign usually remains ON for 10-15 ...
4
votes
1answer
46 views

External regulator just installed and now there is a battery drain that kills my car

My 1996 Jeep Grand Cherokee started beeping and telling me to check the battery. So I had the car tested and it said the voltage regulator was bad. The voltage regulator on these Jeeps are in the ...
3
votes
2answers
19k views

diagnose faulty voltage regulator causing battery overcharging?

I've been having an issue with an '03 Toyota Echo. The alternator died (at least that is what I thought) as the battery kept going flat. I found an alternator at a wrecker and fitted it, and I ...
2
votes
1answer
66 views

2000 Jeep Cherokee 2WD battery light comes on

I recently purchased a 2000 Jeep Cherokee, and I live in Syracuse NY, where the winters are pretty cold. When I start it in the morning when it's cold out, the serpentine belt and tensioner need to be ...
3
votes
1answer
114 views

Motorbike has no power, but kick start works

First up the motorcycle in question is a Skyteam V-Retro 250 (V-Raptor in some countries). On the way home last night I noticed that my tail lights weren't working so I bought a new bulb like I had ...
3
votes
1answer
36 views

Reccommended booster for 2000 Jaguar S type (3 litre petrol, UK)

I only drive this car on weekends, and if I have only done short journeys there is a risk of a flat battery. This happened to me two days ago, and standing on a street in the cold waiting for ...
11
votes
2answers
2k views

Remote Key Fob working only inside the car (close to reciever)

I am struggling to get my Peugeot 308 2-Button Remote Key back to work. I noticed first issues when my Remote Key unlocked / locked the car after several attempts. Then one day it suddenly did not ...
7
votes
7answers
59k views

RPM and duration to recharge a battery?

My car had been sitting for a while without being driven. The battery now has a weak charge but it can get the engine started (barely). I would like to charge the battery by running the engine, but ...
7
votes
2answers
434 views

12V Battery change

4 weeks ago I changed a 12V battery on my Toyota Prius auto. But after being in for two weeks the battery was discharged again. I tried to recharge it, but it did not work - the charger does not start ...
6
votes
1answer
192 views

how do i know if my lead-acid battery has been resurrected?

The OEM battery in my 2008 Jetta SE 2.5L has been nearly fully discharged one month back (had insufficient surface charge after a prolonged use without the engine running, but leaving it idle for 20 ...
4
votes
2answers
54 views

When you replace a car battery, would anything in the A/C system be touched?

Last year my A/C was fixed. Then winter came. Then I had to buy a new car battery and so I went to a mechanic[1] who I paid to replace the battery with a new one. My question is: When you replace a ...
13
votes
1answer
284 views

Replace car batteries with capacitors?

I recently watched this video on YouTube which basically shows the guy replacing a larger capacitors with some smaller capacitors which he had bought. The larger capacitors were actually in place of a ...
4
votes
1answer
26 views

2005 Civic - Strange electrical issues

My wife's 05 civic started to have some strange electrical issues. I'm not sure even where to start troubleshooting. She originally complained that both headlights died simultaneously. I assumed ...
2
votes
1answer
61 views

Amplifier is causing battery drain

Okay I'm driving a 1998 Honda Civic EX and I have an audio system in my car that is about 7-8 years old now. I had done some work on one of the terminals on the subwoofers, and melted plastic in ...
17
votes
9answers
47k views

Battery drains by itself when vehicle is parked (parasitic draw)

A 1998 Jeep Grand Cherokee has gone through 3 batteries in the last 3 months. While they have all been replaced by warranties, it'd be nice to get the problem solved permanently. I've tested the ...
5
votes
2answers
130 views

Multimeter to check car battery current

short background, my car battery will often be too flat to start the car if I don't use it for about 48 hours. Worst it happened the other day after leaving it at airport car park for 4 days and come ...
6
votes
4answers
703 views

Considerations for soldering car battery wires?

I've had several problems with my car's wiring oxidizing at the exposed ends near and under post clamp and causing electrical connectivity problems. The braided wire is a pain to brush clean and I ...
4
votes
1answer
81 views

Honda civic 2003 dead battery from cold

My Honda Civic died after the temperature dropped lower than -30°C, and will only start now when I boost it. The previous owner told me about this, and he said he replaced the battery. But now, it's ...
4
votes
2answers
156 views

How much current should my car draw with the ignition on?

With the ignition fully off, my current draw is pretty much zero, but with the ignition on (to be clear - engine not spinning, starter motor not engaged) it increases to 2.5 amps (at about 11.5v, ...
7
votes
3answers
227 views

Portable jumpstart kits: why aren't regular car batteries this small?

I was looking at the details of this jumpstart product: It claims to be 2 lbs and 14.2 x 12 x 3.5 inches, which I think is for the outer black canvas case, so I would guess the actual device is ...
1
vote
2answers
74 views

Hyundai XG350 - Positive or Negative Ground Battery?

I have a 2002 Hyundai XG350, and all of the wires from the battery run out of sight before connecting to the chassis. There is only one wire coming off of the negative, and a number of different ...
2
votes
1answer
54 views

Are two-wheeler battery types interchangable [duplicate]

I have a Honda Activa 2007 model. The battery fitted in it is electrolyte topup battery which requires distilled water to be filled up from time to time. My question is can a maintenance free battery ...
3
votes
2answers
44 views

What would cause my truck to shut off during me cranking it?

My 1999 Mercury Mountaineer shut off during mid crank. It acted as if it wanted to crank then it shut off. Everything shut down. Outside and inside lights shut off. When I tried to crank it, it didn't ...
1
vote
3answers
87 views

Car doesn't start, cranked at first but now it doesn't

I have a Honda Civic 1995 that suddenly didn't start after a day or two of not being used. I managed to start it with starter cables and drive but when I turned it off I did not start again. I didn't ...
4
votes
4answers
110 views

Does draining a battery typically leave it in a state that it won't take a charge?

My son borrowed a car and the battery seemed fine, car started fine every time. However it died after my son left some overhead lights on in the car overnight. We jumped it, and he drove about 20 ...
6
votes
9answers
3k views

2 Volts on Car Battery

My car battery has gone completely flat after leaving my car parked up for about a month. Tried turning over the car today, and none of the lights on the dash light up. Ran a multimeter across the ...
3
votes
1answer
57 views

Calculate current drain from the battery in a drive

Control module voltage is one of the OBD PID. It signifies the car battery voltage. Is there any way to calculate how much current is drawn in a drive (say 7 km from my office to home). The voltage ...
3
votes
0answers
45 views

Battery Draw while car is off at 3.24

I have a 2007 Saab 95 wagon... For about 6 months at random about once a month my car has been dead. After calling AAA and they told me there is a draw from the battery at apx 3.24 which is should be ...
3
votes
1answer
117 views

Switched battery terminals when installing, 2008 Chevy Cobalt

2008 Chevy Cobalt LS I was installing a charged battery and accidentally put the positive wire on the negative terminal and then as soon as I touched the negative wire to the positive terminal I ...
6
votes
3answers
455 views

Alternator draining battery

My alternator has been draining my battery in my Datsun 240z since I swapped the engine (VQ35). It takes around 4 days to drain the battery to the point I can't start it. It charges it fine when the ...
4
votes
2answers
9k views

Mustang charging system warning light on, but battery and alternator both passed testing?

I have a Mustang that the battery light stays on. I changed the battery and the alternator was checked by Autozone, they said it was good. I need help
8
votes
1answer
119 views

Disconnected wires near battery in BMW e46

I noticed a disconnected wire dangling next to the battery in the trunk of my 2005 BMW 330ci. It was actually a red and blue wire that veered off from the thick red one in the middle of the image. ...
4
votes
1answer
98 views

Battery light flashing after alternator install on 2004 Ford Escape

I just put new alternator on my 2004 Ford Escape, and now my battery light keeps flashing on and off, and it will sometimes stay on. The battery has been checked and is charging 100 % . The alternator ...
5
votes
2answers
221 views

Motorcycle won't turn over immediately after a pit stop

Motorcycle: 1980 Honda CB900 Custom. After refilling the battery with distilled water, getting it charged and letting the motorcycle sit for a few days... I then went for a ride yesterday. The ...
8
votes
2answers
126 views

Old starter clicked, wont turn over engine. New starter wont even click - no noise at all

My old starter would click, but not turn the engine over. I got a brand new starter and installed it. The only two wires connected to the starter are completely different and can only be fit in the ...
4
votes
1answer
36k views

Charging battery after a jump start

A friend accidentally let the battery in his car run out by leaving the car lights on. He managed to get it going again with a jump start, but he wasn't sure how long he'd have to drive to ensure that ...
5
votes
1answer
55 views

2002 golf dead battery - Was able to jump - Bad alternator or Battery

I have a 2002 Golf. I put the car on the drive on Friday night and tried to use it on Wednesday and it was dead. No lights, no display nothing. I came home and jump started and it ran fine. No stalls ...
6
votes
1answer
68 views

Help with Strange Intermittent yet predictable parasitic battery drain?

I'm having an issue where while testing circuits for the offending drain, I will see NO drain for about 30 seconds and then a 6-9 amp drain for about 10; rinse and repeat. Anybody have an idea what ...
10
votes
1answer
91 views

Do any car batteries come dry with the electrolyte in a seperate container?

Small batteries for Motorcycles and Lawn Tractors are typically sold with the electrolyte in a separate bottle and must be added to the battery at home before installing it. I've never seen a "dry" ...
10
votes
2answers
1k views

Can I safely upgrade to an AGM battery?

AGM batteries are capable of being charged at a faster rate, and may draw additional amperage from the alternator if it is not regulated. Many cars that come with AGM batteries have special charge ...
3
votes
3answers
103 views

How can you use the headlights to tell the quality of your battery?

I understand that all headlights do dim briefly when you turn the engine on and that this is normal. I also believe that the headlights will dim more if the car battery is in poor condition. I hope ...
6
votes
1answer
275 views

Starter solenoid clicking continuously

Any advice on this would be greatly appreciated. My car would not start yesterday. When the ignition was turned, all that could be heard was a continuous clicking which then slowed after a while, ...
4
votes
2answers
214 views

Can I use any portable powerbank to jump start a car

Say I have some ordinary portable powerbanks I use for my smartphone, I wonder if all of them are able to jump start a car with flat battery as long as I have a correct connector (e.g. clamp). Or ...
7
votes
1answer
54 views

How can I dispose of the waste products I get from working on my car more effectively?

I have some real challenges disposing of various fluids and consumable objects from working on vehicles at home in my small workshop. Some of the more common things that I want to be able to dispose ...
4
votes
2answers
5k views

What is the difference between a normal battery and a maintenance free battery in a 2 wheeler segment

What is the difference between a normal battery and maintenance free battery. Is a maintenance free battery really free of maintenance or just it requires less no of charge cycles. I currently own a ...
4
votes
2answers
294 views

What battery should I buy for my vehicle?

My girlfriend has a Nissan Versa 2014 (although this question still applies for any other car), and I need to buy a battery for it. I went to both Walmart and Advance Auto parts and there are lots of ...